th July 2011 35 www.semtech.com SX8654/SX8655/SX8656 H" />
參數(shù)資料
型號: SX8654IWLTRT
廠商: Semtech
文件頁數(shù): 29/62頁
文件大小: 0K
描述: IC TOUCH SCREEN 12BIT 20QFN
標準包裝: 1
類型: 電阻式,觸感驅動器
觸摸面板接口: 4,5 線
輸入數(shù)/鍵: 1 TSC,雨刷,鑰匙
分辨率(位): 12 b
評估套件: *
數(shù)據(jù)接口: I²C,串行
電壓基準: 內部
電源電壓: 2.3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-WFQFN 裸露焊盤
供應商設備封裝: 20-QFN(4x4)
包裝: 標準包裝
其它名稱: SX8654IWLDKR
ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 25
th July 2011
35
www.semtech.com
SX8654/SX8655/SX8656
Haptics Enabled 4/5-Wire
Resistive Touchscreen Controller with Proximity Sensing
Figure 46 – Pen Trigger Mode (RegIrqMsk[6:2] = 00010 ; PROXSCANPERIOD = 001 ie 1/TOUCHRATE)
5.4.3
Minimum Scan Period (i.e. PROXSCANPERIOD)
Similarly to touch operations (Cf. §4.6.5), if PROXSCANPERIOD is too short for proximity sensing operations to
be completed, the rate tick(s) affected are ignored until operations are completed and the following tick is taken
into account for the next planned operation.
Please note that compensation lasts about ~16 times longer than a normal proximity sensing operation.
Idle
Touch Conversion
Pen Detection
NIRQ
TOUCHRATE
tick
Pen Touch
Pen Release
I2C Read Channel
Proximity Sensing
PENSTAT
CONVSTAT
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